제출 #383737

#제출 시각아이디문제언어결과실행 시간메모리
383737REALITYNB콤보 (IOI18_combo)C++14
컴파일 에러
0 ms0 KiB
#include <bits/stdc++.h> using namespace std; string guess_sequence(int n){ string CH = "AB" ; int anss = press(CH) ; if(anss==0) CH="XY" ; char s ; string DUMB; DUMB+=CH[0] ; if(press(DUMB)) s=CH[0]; else s=CH[1]; string BUTTONS = "ABXY" ; for(int i=0;i<BUTTONS.size();i++){ if(BUTTONS[i]==s){ BUTTONS.erase(BUTTONS.begin()+i) ; break ; } }//YXXBA string ans ; ans+=s ; for(int i=1;i+1<n;i++){ string ask = ans; ask+=BUTTONS[0] ; for(int j=0;j<3;j++){ ask+=ans; ask+=BUTTONS[1]; ask+=BUTTONS[j]; } int res = press(ask) ; if(res==i+1){ ans+=BUTTONS[0]; } else if(res>i+1){ ans+=BUTTONS[1]; } else{ ans+=BUTTONS[2]; } } string ask ; ask=ans ; ask+=BUTTONS[0] ; if(press(ask)==n){ return ask ; } ask.pop_back() ; ask+=BUTTONS[1] ; if(press(ask)==n){ return ask ; } ans+=BUTTONS[2]; return ans ; }

컴파일 시 표준 에러 (stderr) 메시지

combo.cpp: In function 'std::string guess_sequence(int)':
combo.cpp:6:16: error: 'press' was not declared in this scope
    6 |     int anss = press(CH) ;
      |                ^~~~~
combo.cpp:14:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::__cxx11::basic_string<char>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   14 |     for(int i=0;i<BUTTONS.size();i++){
      |                 ~^~~~~~~~~~~~~~~